EP 2682658 B1 20181031 - THREADED COUPLING FOR PIPE
Title (en)
THREADED COUPLING FOR PIPE
Title (de)
SCHRAUBVERBINDUNG FÜR ROHRE
Title (fr)
RACCORD FILETÉ POUR TUBE
Publication
Application
Priority
- JP 2011042602 A 20110228
- JP 2012025825 A 20120209
- JP 2012055292 W 20120224
Abstract (en)
[origin: EP2682658A1] Radial seal type threaded joints for steel pipes have still room for improvement in ensuring sealability in terms of the rigidity of the pin nose. Specifically, the outer circumferential surface of the nose 8 of the pin 3 has an outward convex curved shape, and the sealing surface of the box 1 has a tapered shape; and the cross-sectional area of the pin 3 at a seal point sp that is a portion on the outer circumferential surface of the nose 8 of the pin 3, the portion first coming into contact with the sealing surface of the box 1 when threaded-joined, is 35% or more of the cross-sectional area of an original pipe portion corresponding to an unprocessed portion.
IPC 8 full level
E21B 17/042 (2006.01)
CPC (source: EP US)
E21B 17/042 (2013.01 - EP US); F16L 15/00 (2013.01 - US); F16L 15/001 (2013.01 - EP US); F16L 15/06 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2682658 A1 20140108; EP 2682658 A4 20160511; EP 2682658 B1 20181031; AU 2012223950 A1 20130829; AU 2012223950 B2 20150903; BR 112013021810 A2 20161025; BR 112013021810 A8 20171114; BR 112013021810 B1 20200929; CA 2827619 A1 20120907; CA 2827619 C 20160209; CN 102678070 A 20120919; CN 102678070 B 20161109; CN 202611607 U 20121219; ES 2702755 T3 20190305; JP 2012193844 A 20121011; JP 5849749 B2 20160203; MX 2013009898 A 20131104; MX 337541 B 20160310; MY 180510 A 20201201; RU 2541363 C1 20150210; US 2014116560 A1 20140501; US 9657873 B2 20170523; WO 2012118167 A1 20120907
DOCDB simple family (application)
EP 12752067 A 20120224; AU 2012223950 A 20120224; BR 112013021810 A 20120224; CA 2827619 A 20120224; CN 201210048438 A 20120228; CN 201220069731 U 20120228; ES 12752067 T 20120224; JP 2012025825 A 20120209; JP 2012055292 W 20120224; MX 2013009898 A 20120224; MY PI2013003141 A 20120224; RU 2013143833 A 20120224; US 201214001944 A 20120224